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The ratio of monthly incomes of Amit, Bunny is 9 : 8 and their monthly expenditures are in the ratio 7:6. If each of them saves Rs. 8000 per month, find the sum of their monthly incomes.1). Rs. 360002). Rs. 280003). Rs. 680004). Rs. 52000 |
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Answer» LET the income of Amit be 9x and that of Bunny be 8x. Let the expenditure of Amit be 7Y and that of Bunny be 6y. Hence, savings of Amit = 8000 = 9x – 7y Savings of Bunny = 8000 = 8x – 6y Hence, 9x – 7y = 8x – 6y ⇒x = y Substituting this in ONE of the above equations, we have 8000 = 2x ⇒x = 4000 Hence, 9x = 36000 and 8x = 32000 ⇒sum of their INCOMES = 36000 + 32000 = 68000 |
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